Type-writing machine.



J. M. SHELTON.

TYPE WRITING MACHINE.

. APPLICATION FILED O0T.21, 1912.

1,067,764. Patented Ju1y15,1913.

3 SHEETS-SHEBT 1.

y y J5 l I I .WlTNESsEs lNVEFITOR J. M'. SHE'LTON.

vTYPE WRITING MACHINE.

APPLIGATION FILED 00T.21, 1912.

Patented July 15, 1913.

3 SHEETS-SHEET 2.

INVENTOR ATTORNEY WITNESSES WITNESSES J. M. SHELTON.

TYPE WRITING MACHINE. l

'APPLICATION FILED 0011.21. 1912.

1,067,764... l y Patented Ju1y15,1 913.

3 SHEETS-SHEET 3.

Z; J2 .Jahn/111. heliwzf,

INVENTOR view partly in section.

UNTEU STATE@ PATENT OFFRIR.

JOHN M. SHELTON, 0F OKLAHOMA, OKLAHOMA.

' TYPE-WRITING MACHINE.'

Specification of Letters Patent.

Patented July 15, 191.3.

-Application filed October S31y 19112.. Serial 1 \To. 727,036.

ing` Machines, oit which the following' a specification.`

'lhe inventionfrelates-to improvements in typewriting machines.

The object of the presentinvention to improve the construction of ,typewriting machines, and to provide simple, inexpensive and eflicient mechanism adapted to be readily applied tol a typewriting machine, and equipped with an operating' leverin the form of a supplemental key, adapted to be readily depressed by the hand for retairniirnl thc carriage without removing the hand from its position at' the keyboard` whereby speed in writing' will be materialliV increased.

A further object of the invention is to provide an attachment in the form of a supplemental key for operating the tabulating har and to arrange the supplemental keys at one end of the keyboard in convenient position to be Voperated withV one hand, whereby lthe operator 'will be enabled to move the carriage quickly in either direction the desired distance and instantly lock the carriage at such point. v

With these and other objects in View, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accomi'ianying' drawings, and pointed out in Athe claims hereto appended; it being understood that various changes inthe form, proportion, size and minor details of construction, within the scope ot' the claims, may be resorted to without departing from the spirit or sacrificing' any of the advantages ol the invention.

ln the drawings: Figure 1 is a front elevation partly in section of an L. C. Smith typewriting machine equipped with at taclnnents. constructed in accordance With this invention. Fig. 2 is a rear elevation ot the same. Fig. 3 is a vertical longitndi. nal sectional view. Fig. 4 is a rcverseplan Fig. 5 is an cnlargred detail ysci-tional view on the line 5--5 of Fig'. 3%. Fig'. (l is a detail perspective view. illustrating the arrangement ot the* levers ot the carriage returning` mechanisnn.`

Fig., 7 is a detail perspective view, illustrate ing the yconstruction of the automatic linve spacing` mechanism. Fig'. 8 is a detail persi'iective View of the rock shaftotthe auto- 'matic line spacingmechanism. Fig. 9 is a detail perspective view of the bea-ring bracket of the automatic line spacing mechanism. Fig. 10 is a detail perspective view of the pivoted stop or abutment of the automatic line spacing' mechanism.

Like numerals of reference designate corresponding drawings.A

Inthe accompanying drawings in which is illustrated the preferred embodiment of the invention, the carriage returning' mechaparts in all the iigures of4 the nisni comprises in its construction a"long, 'ii :tudinally disposed rock shaft 1 journaled in suitable bearings of .a transverse bar Q and a bracket plate 3,- and located beneath the rear portion ot the main frame l of an L. C. Smith typewriting machine and pro- `vided at its rear end with an oscillatory arm 5, extending upwardly to the upper portion ot' the t-ypewriting,` machine and connected by a link 6 with the carriage 7 of the typewritinp; machine. The link G is pivote ed at one end at the back of the carriage by a screw S, and its other end is pivotally connected to thc upper cnd of the rear arm 5 of the longitudinal rock shaft, whereinv` when the latter is partially rotatedby the means hereinafter descrihech the arm 5 will be oscillated.

'lhctransverse bar 2 extends entirelyr across the f'ame of the machine and is se cured at its ends to the same by screws 9, or other fasteningv devices. and the bracket plate Il, which is preferably tapered down- Ward as shown, is provided at the top with a ,horizontal flange 10 yfitted against the una point intermediate of its ends with a relatively short arm 14, adjustably secured to the shaft 1 by a set. screw 15 and extending' upwardly from the latter at an inclination 'and connected at its outer end bv short links 16 with lthe transverse lever.

The short int-ned arm 14 of the rock shaft 1 1s arranged at an acute angle to the rear upwardly extending arm 5, and the y lever 1T, which extends outwardly from a point above the short arm 14 of the rock shaft 1 to one side of the machine, is pivoted at a point. between its center and inner end to the plate 3 by a pin 18, or other suitable fastening device. The innerV portion of the transverse lever 17 is arched slightly, as clearly shown in Figs. 5 and 6 of the drawings, and the outer arm of the lever-17 receives a grooved anti-friction roller or wheel 19, straddling the upper` edge of the transverse lever and carried by a rear longitudinally disposed lever 20 lof bell c 'rank form. The outerarm of the transverse lever is adapted' to be depressed bythe roller 19,

' and it is provided with a terminal upwardly projecting lug 21 forming a stop' and adapted to prevent the roller"19 from sliding olf The inclined arm 14 moves downwardly as the carriage feeds forwardly, and when the carriage is at the limit of its forward movement; the arm 14 approaches a horizontal position and it is swung upward by vthe transverse leyer`when the outer arm thereof is depressed.

The lever 20, which consists of a relatively long approximately horizontal arm 22 and a relatively short arm 23, is pivoted at its angle by a pin 24, mounted on the rear portion of a support 25, preferably consisting of a plate or piece arranged in a vertical plane in spaced relation with one side of the main frame of the machine, and -pro1 vvided at the bottom with a horizontal attaching flange 26, secured by screws or other suitable fastening devicesto the main frame at the bottom thereof. The long arm 22 extends rearwardly from the pivot pin 24, and the short arm 23 depends therefrom and is connected by an inclined longitudinally disposed link 27 with the inner section 28 of an operating lever 29, which is provided with a pivoted foldable outer section 30. The inner section of the operating lever 28 is of-bell crank form being provided at the rear portion with a short downwardly extendingarm 31, which is pivoted to the support 25'pby a pin 32, or other suitable fastening device. The rear section 28 of the o erating lever extends forwardly fromV the plvot 32, and the front section 30, which tso is in the. form of a. key, is provided at the ,rear portion with an arch 33l composed of inner and outer sides and a-connecting top portion and extending over the adjacent side of the` front projecting portion 34 of the main frame of the machine to arrange the front port-ion of the ioldable section at the outer side of the main frame of the machine and to enable the operating lever to extend in advance of the same. The inner ,side` of the archmis to tl-,e frontend of the inner or rear section 28 of the operating lever by a -rivet 35, or other suitable pivot, and it is provided at the bottom with a lug 36, arranged to engage'the lower edge of the inner or rear section 2S to limit the rela-tive downward swing of the front pivoted section. The lug is loca-ted adja` cent to the front edge ofthe inner or rear lever section 28, which is rounded at the `lower front corner 37 to permit the lug to swing upwardly from the position illustrated in full lines in Fig. 3 of the drawings.A `This will enable the v pivoted front section of the operating lever to fold or swing upwardly to the dotted line posit-ion illustrated in the said figure to-arrange it out'of the. way and to enable an ordinary cover to be placed over the typewritng machine. The outer or front end of the pivoted section 30 of the operating lever is provided with a head'BS, extending inwardly at the left. hand corner of t-he front ofthe machine and located in advance of the same in convenient position to be readily depressed by the hand or wrist of the operator without removing the hand from its position at that end of the keyboard. By. this construction and ar rangement, thevcarriage may be easily and quikly returned to its initial position with out the loss of time which occurs when it is necessary to operate the forwardly eX- tending line spacing handle 39 in the ordinary well known manner. The depressible operating lever by effecting a quick return of the carriage enables the speed of the operator to be materially increased.

In order to enable the position of the car-r riage to be controlled by the left hand of the operator without removing the same from the left hand end of the keyboard of the machine, thelatter is equipped with a transversely disposed loperating lever 40, constituting a Supplemental key and located in rear of the bank of keys 41 and below the plane of the rear ser, as clearly indicated in Fig. '1 of the-drawings. The lever A0. which is arranged at a slight inclination, is pivoted to the machine adjacent to the right hand side thereof by a screw 42, and it extends to the left hand end of the machine and is provided with a forwardly extending head or linger piece 4,3. located slightly be- Vyond the left hand end' of the bank of keys at a point in rear of the arch 33 of the londisposed operating lever 40 is connected at, a point. intermediate of its ends by a hook 44 or other suitable means, with the depressible release bar 45 of the tabulating and feeding mechanism. The release bar 45, which is located above and in rear of the bank of keys, when depressed disengages the controlling means of the feeding mechanism from the toothed' bar yof jthe carriage and nocive-i l permits the latter to slide freely either un der the inl'luence ot its actuating spring or the carriage returning mechanism.

lllhen it is desired to adjust theV carriage to any particular point, the hand is placed on the operating` lever of the carriage returning mechanism. and with one of the tingers of such hand, the transversely disposed carriage releasing lever si() is depressed. The

carriage may then be either moved to the. right by depressing the operating `lever ofthe carriage returning mechanism, or the carriage may be permitted to be moved to the lett by the spring of the carri age. feeding mechanism, the tree movement ot' the can riage under lthe influence ot the spring being controlled by the pressure ot the hand upon the operating lever 29 of the carriage returning mechanism. When the carriage is brought to the desircdposition, the transversely disposed lever or key 40 is-released to permit the controlling means of the carriage feeding mechanism to rengage the toothed bar of the carriage and lock the same. The hand may then be removed from the operating lever of the carriage returning mechanism. y By this construction, the carriage may be quickly shifted from one position to another with the left hand without removinof the same from its normal position at the left band end ot the keyboard.

lVhen the carriage is returned to its initial position at the right hand end -ol the 1nachine, the rotary platen or paper roller 46 is automatically actuated to ett'ect the spacing between the lines by mechanism comprising a vertical rock shaft 47, mounted in upper and lower bearings t8 ot an approximately l shaped bearing bracket 49, which is secured to the front` of the carriage atthe right hand end thereof. The vertical rock shaft 47 is provided at the top with a short horizontally project-ing arm 50, located in advance of 'the pivoted oscillatory member 51vvhich carries the pawl or dog 52 tor en'- gaging the ratchet wheel. 53 of the rotary' platen or roller 4G. Thevcrtical rock shaft 47 is also provided at the lower end with a relatively long horizontal arm 54: located beneath the carriage and adapted through the movement of the carriage to engage a pivoted stop or abutment 55, whereby the vertical rock shaft 47 is partially rotateda suf fcient distance to actuate the oscillatory member 51 of the line spacing mechanism to rotate the paper roller and advance the till anti-friction roller v57 o't' the abutment 55.

fname of the machine, as clearly illustrated in Figs. l and 2 ot the drawings. The pivoted stop or abutment is provided at its lower portion-with a weight 60, adapted to hold a laterally projecting lug (3l normally in engagement with a lower shoulder 620 the outwardly extending arm of the supportingvbracket 59. The stop or abutment is ,provided at the upper portion directly above the ear 58 with spaced vertically alined ears 63 between which the artidriction roller 57 is mounted. `When the free rear end ot the horizontal arm 54C of the vertical shaft'is carried into engagement with the antidriction sleeve of the stop or abutment 55, the shaft/li" is rotated to feed the paper and in the return movement of the carriage is carried beyond the stop or abutment, the outward movement ol the arm 5d being limited by a pin G4 projecting upwardly from the inner portion of the arm' 5l and arranged to engage the carriage frame, as clearly shown in Fig. 3 of the drawings. The stop or abut-ment is tapered upwardly, and its4 rear or outer edge 65 is inclined upwardly and forwardly and is adapted to permit the arm 54 to pass readily over the stop or abutment in the forward or y ldd llhe improvements are in the form of at tachmcnts and are secured to the typewritingp machine by the usual screws thereof, and they do not necessitate any alteration in the construction ot the machine, and they'are substantially concealed from view.

What is claimed iszl. ln a typewritiug machine, the combination withA a main frame and a slidable carriage,`o:t' carriage return mechanism includingan oscillatory arm mounted Aat the rear portion of the frame and arranged to oscil late in the direction of movement of the carj riage and connected with the latter, an operating lever mounted at the front of 'the frame et the machine and having a foldable section extending to the 'front of the machine to a point in advance of the keyboard and arranged in position to. be depressed by the hand of the operator Without removing the saine from its position at the keyboard of the machine, said foldable section being adapted to be swung rearwardly out of the Way, and means for transmitting motion from the opeiating lever to the oscillatory arm.

2. In a typewriting machine, the combina- -'"tion with a main frame and a slidable c-ari'iage, of carriage returning mechanism including an oscillatory arm mounted at the rear portion of lthe fiame and arranged to oscillatein `the direction of movement of the "carriage and connected with the latter, a

longitudinally disposed operating lever coii` sting of an `inner or rear section mounted Within the traine of the machine at one end .of the keyboard, and a foldable front section connected with 'therear `section and extending to the front of theinachine to a point in advance of the keyboard, and means for transmitting motion from the operating lever to the oscillatory arm.

3. In a typewriting machine,vthe combination with a main frame and a slidable carriage, of carriage returning mechanism including an oscillatory arm mounted at the rear portion of the frame and arranged to oscillate in the lirection of movement of the l carriage and connected Withthe latter, a

longitudinally disposed operating lever composed of .t rear section mounted Within lthe frame at one end of the keyboard, and a nation with a main frame and a slidable carriage, of carriagereturning mechanism including a rear. longitudinal 'rock shaft having a relatively long upwardly extending arm connected with the carriage, said rock shaft being also provided with a relatively short arm located within the frame of the machine, a transversely disposed lever pivoted at an intermediate point and connected at its inner ends with the relatively'long arm of therock shaft, an operating lever located at one side of 'the machine and extending to the front portion thereof, and means for transmitting motion from the operating lever to the transverse level'.

5. In a typewriting machine, the combination with a main frame and a slidable carriage, of carriage returning mechanism including a longitudinal rock'shaft having an arm connected with the carriage, atransversely disposed lever pivoted at an intermediate point to form inner and outer arms, itsl inner 1arm being operatively connected with the rock shaft, a rear longitudinally disposed lever arranged to depress the outer arm of the transverse lever,l and an operan and extending to the front portion tlieieo'i and connected with` the rear longitudinal lever.

G. In a typewriting machine, the combination with a main frame and a slidable carriage, of carri-age returning mechanism including an oscillatory arm connected with the carriage, a transverse lever fulciumed at an intermediate point to form inner and outer arms and provided at'its outer end with a stop lug, a rear longitudinally disposed lever having a grooved antifrictioii roller arranged to depress the outer arm of the transverse lever, means for transmitting motion from the' inner arm of the said lever to the oscillatory arm, and an operating lever located at one side of the machine and extending to the front portion thereof and connected with the rear longitudinal lever.

7. In a typexvritiiig machine, the combination with a niaiii frame and a slidable carriage, of carriage returning mechanism including a rear oscillatory arm connected with the carriage, a .transverse lever fulcrumed atan intermediate point to forni inner and outer arms, means for transmitting motion from the in'iier arm of the lever to the rear oscillatory arm, a rear longitudinal lever located at one side of the arm, of the transverse lever, a longitudinally disposed operating lever located at one side of the machine and extending to the front thereof, and means for connecting the operating lever with the rear longitudin nal lever.

8. The combination with a typewritiiig machine including a sliding carriage, and feeding mechanism therefor having` a depressible release bar located at the back of the keyboard in rear of tl'ie bank of lever fulcruined at one end aiidconnected at an intermediate point with the depressiof the keyboard. f

9. The combination with a'ltypeivriting machine comprising a. sliding carriage, and feediii mechanism therefor having a depressib e release bar ylocated at the back of the vkeyboard in rear of the bank vof keys, 'an operating lever connected With the release bar and havin a finger piece located at onejend of the keyboard, and carriage returning mechanism including an operating lever located at such end of the'keyboard and having ahead extending to a point in advance ofthe -safid finger piece,

ing lever located at one sideof the machine machine and arranged to actuate the outer keys, and a transversely disposedy operating i ble release bar and extending `to one end at the said end of the keyboard and extend.- ingto a point in advance of the transverse ,Operating lever.

In testimony that I claim the foregoing as my Own, I have hereto affixed my signature in the presence ef two xfvitnesees JOHN M. SHELTON.

said levers being adapted to be operated simultaneously with ene hand.

l0. The combination with a typewrting. machine comprising a sliding carriage, and feeding mechanism therefor having av deplessible release bar located at the back eff the keyboard in reen of the benk of keys, a transverse operating level` connected with the release bar and extending to one end of the l eyb0a1d,and carriage returning mechanism including en operating lever locate-d i Witnesses:

A. E. DAVENPORT, KIT SHELTON.

opies of this patent may 'ne obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. 

